Service Port HVAC: Locations

A High pressure connection
B Low pressure connection
1 A/C compressor
2 High pressure vapor line to condenser
3 Condenser
4 High pressure liquid line to receiver/dryer
5 Receiver/dryer
7 High pressure line to evaporator
8 Low pressure line to evaporator
9 Expansion valve
10 Evaporator
12 Low pressure line to A/C compressor
13 Rear A/C
14 Low pressure line
15 Low pressure line
16 Low pressure line
17 Pipe group
18 Fuel cooler
B12 Refrigerant pressure sensor
B12/1 Refrigerant temperature sensor
Y67 Rear Refrigerant shut-off valve